One vertex per element, one color per generator, with an edge from x to x·s.
(9,10)(11,14)(12,13)(15,16)(17,18)(19,21)(20,23)(22,24) involution — undirected(1,2)(3,4)(5,6)(7,8)(10,13)(14,16)(18,19)(22,23) involution — undirected(2,6)(4,7)(11,15)(14,16)(17,18,21,19)(20,22,24,23)(2,6)(3,8)(9,10,12,13)(11,14,15,16)(17,19,21,18)(20,23,24,22)(1,3)(2,7)(4,6)(5,8)(9,10)(11,14)(12,13)(15,16)(17,20)(18,22)(19,23)(21,24) involution — undirected(1,4,5,7)(2,3,6,8)(9,11,12,15)(10,14,13,16)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.